| Abbreviation | Definition |
|---|---|
| ROARS | Reaching Out to All Recent Students |
| ROCS | Ryerson Off-Campus Students |
| ROSI | Repository Of Student Information |
| ROSP | Report on Student Progress |
| ROSS | Remarkably Outstanding Student Service |
| ROTC | Reserve Officers' Training Corps |
| RPST | River Place Student Theatre |
| RSA | Regional Studies Association |
| RSA | Resident Student Association |
| RSAB | Rohatyn Student Advisory Board |
| RSAO | Research Student Administration Office |
| RSAO | Research Student Administrative Office |
| RSAP | Residential Student Assistance Program |
| RSAP | Rhodes Student Associate Program |
| RSAS | Rensselaer Student Auto Shop |
| RSC | Rewarding Student Commitment |
| RSC | Rhatigan Student Center |
| RSCC | Revolutionary Student Coordinating Committee |
| RSCD | Reach Students Central District |
| RSDI | Rural Student Development Initiative |